1. Bateman, H., , Partial differential equations of mathematical physics, Dover, 1944,
2. Lamb, H., , Hydrodynamics, Cambridge University Press, 1932,
3. Diffraction of sea waves by breakwaters;Penney;Artificial Harbors, Sec. 3D,1944
4. Diffraction of water waves by breakwaters;Putnam;Trans. Amer. Geophys. Union,1948